diff --git a/ssh-transport/src/lib.rs b/ssh-transport/src/lib.rs
index d80d3b5..f09cd9d 100644
--- a/ssh-transport/src/lib.rs
+++ b/ssh-transport/src/lib.rs
@@ -168,7 +168,7 @@ impl ServerConnection {
                                 Ok(expected)
                             } else {
                                 Err(client_error!(
-                                    "client does not supported algorithm {expected}"
+                                    "client does not supported algorithm {expected}. supported: {list:?}",
                                 ))
                             }
                         };